Dap monomer

Dap monomer, or diallyl phthalate, is a clear to slightly yellow liquid with a CAS number of 131-17-9, supplied by Shandong Huanya Chemical Co. in 200kg steel drums. It contains two reactive allyl groups that enable crosslinking under heat or catalytic conditions, making it a key monomer for thermoset resins. The product has a density of 1.110 to 1.114 g/cm³ at 20°C and a viscosity of 8.5 mPa·s under the same conditions.

This monomer is not a polymer but a reactive intermediate used to produce DAP pre-polymers for high-temperature plastics. It is stable at room temperature but becomes highly reactive when exposed to peroxides or elevated heat. The supplier does not claim purity beyond the listed physical properties. Typical impurities include trace unreacted phthalic anhydride or allyl alcohol, which should be controlled for consistent curing behavior.

It is primarily used in electrical insulation, UV-curable inks, grindstones, and as a crosslinker in unsaturated polyester and acrylic resins. Buyers include manufacturers of electrical connectors, electronic components, and industrial abrasive products. Packaging is in 200kg steel drums. Buyers must confirm handling procedures for flammability and thermal sensitivity, as the flash point is 160°C and autoignition occurs at 435°C.

Shandong Huanya Chemical Co. is a chemical supplier located in Taierzhuang Industrial Zone, Zaozhuang, Shandong, China. The company is listed as a producer of diallyl phthalate monomer, with no indication of third-party certifications, ISO status, or production volume. The supplier holds a harbor trust tier, suggesting verified export documentation capability, but response metrics are not recorded.

No information is provided on company history, workforce, laboratory facilities, or client base. The listing does not claim manufacturing scale, R&D capacity, or compliance with REACH or GHS standards. Buyers should treat this as a direct manufacturer of the monomer but must independently verify batch consistency, impurity profiles, and safety data sheets before use in regulated applications.